OMAHA, Neb. (AP) — A teenage boy suspected in a shooting at a Nebraska mall that left one man dead and a woman injured was arrested Sunday on a murder warrant, police said.

Omaha Police said 16-year-old Makhi Woolridge-Jones is facing a first-degree murder charge in the shooting Saturday at the Westroads Mall in Omaha. Brandon Woolridge-Jones, 18, was earlier arrested on a charge of being an accessory to the shooting.

The two young men were identified as brothers in a previous court filing their mother submitted in 2016 for a protection order.

Police said a third man has been identified as a person of interest in the shooting, but did not release his name.

Terrified shoppers fled for cover as shots rang out around midday near a J.C. Penney store at the mall

Police said 21-year-old Trequez Swift was shot and died at an Omaha hospital. A woman, 22-year-old Ja’Keya Veland, was wounded in her leg, but her injuries are not considered life-threatening.

Authorities have not described the circumstances leading up to the shooting, but said it was an isolated incident and not a random attack.

Last month, Omaha Police Officer Jeffrey Wittstruck was shot at four times by a 21-year-old man who was accused of shoplifting T-shirts from J.C. Penney at Westroads. Wittstruck survived.

In 2007, a gunman killed eight people and himself inside the Von Maur department store at Westroads.